A central difficulty for the Humean resides in the articulation of fundamental non-spatiotemporal glueing relations that hold the basis together without being modally or nomically charged (so that they can be accepted as brute facts about the basis). Quantum entanglement and more specifically Bell-type correlations may play such a role, at least to the extent that they are central features in many approaches to quantum gravity.There are also several suggestions about the role of entanglement in the emergence of spacetime, in particular some of them relying on (or inspired by) the Ryu-Takayanagi formula (or conjecture) in the context of AdS/CFT correspondance between entanglement entropy (in the boundary) and area (in the bulk), see, e.g., [1]} and [2]}; in the philosophical literature, see [3]} (forthcoming), and for a critical perspective see [4]}. As an example, there is a precise sense in which entanglement plays a glueing role among fundamental degrees of freedom in loop quantum gravity ([5]}); in this example, the Humean then needs to argue that the attendant glueing conditions or constraints (e.g. on the quantum polyhedra corresponding to the spin network nodes to be glued together) are sufficiently categorical, that is, sufficiently modally and nomically innocuous to be accepted as brute facts about the basis. In any case, what these conditions and their implications really mean for the Humean needs to be carefully assessed; and similarly for other glueing proposals—this is work for future research.
